Add docstrings.
JSLint run.
JSLint run.
Add session_id column to reservations table (incl. upgrade step).
Simply store the email address and the additional data in the session (not yet FTI aware).
Merge remote-tracking branch 'origin/master' into my_reservations

Conflicts:
	seantis/reservation/reserve.py
Encapsulate session key generation in a function.
Call not required.
Setup Zope session in tests.
Use getToolByName() to get session data manager.
Tests for session storage functions.
Do not checkout the sources a second time (so that tests are run on the branch).
Undo last commit. Travis CI buildout configuration is independent of develop.cfg.
Add 'My reservations' view.
Remove version pins for the moment (avoid errors on CI server).
Add viewlet showing 'My reservations'.
Update translations.
JSLint run.
JSLint run.
Link to open overlay from viewlet.